usr/src/head/aio.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  24  *
  25  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28
  29 #ifndef _AIO_H
  30 #define _AIO_H
  31
  32 #include <sys/feature_tests.h>
  33 #include <sys/types.h>
  34 #include <sys/fcntl.h>
  35 #include <sys/siginfo.h>
  36 #include <sys/aiocb.h>
  37 #include <time.h>
  38
  39 #ifdef  __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 #if     (_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
  44 #error  "POSIX Asynchronous I/O is not supported in POSIX.1-1990"
  45 #endif
  46
  47 /* large file compilation environment setup */
  48 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
  49 #ifdef __PRAGMA_REDEFINE_EXTNAME
  50 #pragma redefine_extname        aio_read        aio_read64
  51 #pragma redefine_extname        aio_write       aio_write64
  52 #pragma redefine_extname        lio_listio      lio_listio64
  53 #pragma redefine_extname        aio_error       aio_error64
  54 #pragma redefine_extname        aio_return      aio_return64
  55 #pragma redefine_extname        aio_cancel      aio_cancel64
  56 #pragma redefine_extname        aio_suspend     aio_suspend64
  57 #pragma redefine_extname        aio_fsync       aio_fsync64
  58 #pragma redefine_extname        aio_waitn       aio_waitn64
  59 #else
  60 #define aiocb           aiocb64
  61 #define aiocb_t         aiocb64_t
  62 #define aio_read        aio_read64
  63 #define aio_write       aio_write64
  64 #define lio_listio      lio_listio64
  65 #define aio_error       aio_error64
  66 #define aio_return      aio_return64
  67 #define aio_cancel      aio_cancel64
  68 #define aio_suspend     aio_suspend64
  69 #define aio_fsync       aio_fsync64
  70 #define aio_waitn       aio_waitn64
  71 #endif
  72 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
  73
  74 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
  75 /*
  76  * In the LP64 compilation environment, map the 64-bit-explicit versions
  77  * back to the generic versions: all i/o operations are already "large file"
  78  */
  79 #ifdef __PRAGMA_REDEFINE_EXTNAME
  80 #pragma redefine_extname        aio_read64      aio_read
  81 #pragma redefine_extname        aio_write64     aio_write
  82 #pragma redefine_extname        lio_listio64    lio_listio
  83 #pragma redefine_extname        aio_error64     aio_error
  84 #pragma redefine_extname        aio_return64    aio_return
  85 #pragma redefine_extname        aio_cancel64    aio_cancel
  86 #pragma redefine_extname        aio_suspend64   aio_suspend
  87 #pragma redefine_extname        aio_fsync64     aio_fsync
  88 #pragma redefine_extname        aio_waitn64     aio_waitn
  89 #else
  90 #define aiocb64         aiocb
  91 #define aiocb64_t       aiocb_t
  92 #define aio_read64      aio_read
  93 #define aio_write64     aio_write
  94 #define lio_listio64    lio_listio
  95 #define aio_error64     aio_error
  96 #define aio_return64    aio_return
  97 #define aio_cancel64    aio_cancel
  98 #define aio_suspend64   aio_suspend
  99 #define aio_fsync64     aio_fsync
 100 #define aio_waitn64     aio_waitn
 101 #endif
 102 #endif  /* _LP64 && _LARGEFILE64_SOURCE */
 103
 104 /*
 105  * function prototypes
 106  */
 107 extern int      aio_read(aiocb_t *);
 108 extern int      aio_write(aiocb_t *);
 109 extern int      lio_listio(int,
 110                     aiocb_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
 111                     int, struct sigevent *_RESTRICT_KYWD);
 112 extern int      aio_error(const aiocb_t *);
 113 extern ssize_t  aio_return(aiocb_t *);
 114 extern int      aio_cancel(int, aiocb_t *);
 115 extern int      aio_suspend(const aiocb_t *const[], int,
 116                     const struct timespec *);
 117 extern int      aio_fsync(int, aiocb_t *);
 118 extern int      aio_waitn(aiocb_t *[], uint_t, uint_t *,
 119                     const struct timespec *);
 120
 121
 122 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
 123         !defined(__PRAGMA_REDEFINE_EXTNAME))
 124 extern int      aio_read64(aiocb64_t *);
 125 extern int      aio_write64(aiocb64_t *);
 126 extern int      lio_listio64(int,
 127                         aiocb64_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
 128                         int, struct sigevent *_RESTRICT_KYWD);
 129 extern int      aio_error64(const aiocb64_t *);
 130 extern ssize_t  aio_return64(aiocb64_t *);
 131 extern int      aio_cancel64(int, aiocb64_t *);
 132 extern int      aio_suspend64(const aiocb64_t *const[], int,
 133                         const struct timespec *);
 134 extern int      aio_fsync64(int, aiocb64_t *);
 135 extern int      aio_waitn64(aiocb64_t *[], uint_t, uint_t *,
 136                     const struct timespec *);
 137 #endif  /* _LARGEFILE64_SOURCE */
 138
 139 #ifdef  __cplusplus
 140 }
 141 #endif
 142
 143 #endif  /* _AIO_H */